H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
H02M1/00—Details of apparatus for conversion
H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from AC or DC
Landscapes
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Shielding Devices Or Components To Electric Or Magnetic Fields
(AREA)
Dispositif permettant de faire apparaître, sur une courbe rendue visible sur l'écran d'un tube cathodique, un repère correspondant à une fréquence déterminée.
Ideas for the Radio Experimenter's Laboratory: Containing Much Valuable Data on the Construction and Use of Such Laboratory Instruments as the Oscillator, Wave-meter, Direction Finder, Radio Compass, Vacuum Tube Characteristic Measurement Set, as Well as Detailed Instructions on the Winding of Various Kinds of Standard Inductance Coils
Construction of Radio Phone and Telegraph Receivers for Beginners: Solid, Useful Data, Photos, and Drawings Prepared Specially for the Radio Novice and Experimenter on the Erection of Antennas, Planning a Station, and Building All Kinds of Crystal, Audio, and Regenerative Receivers, with Amplifiers and Loud Speakers for Radio Telephone Broadcast Reception and Telegraph Signals